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The Bouncy Castle Java APIs for the OpenPGP Protocol. The APIs are designed primarily to be used in conjunction with the BC FIPS provider. The APIs may also be used with other providers although if being used in a FIPS context it is the responsibility of the user to ensure that any other providers used are FIPS certified and used appropriately.

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package org.bouncycastle.bcpg.sig;

import org.bouncycastle.bcpg.SignatureSubpacket;
import org.bouncycastle.bcpg.SignatureSubpacketTags;

/**
 * packet giving signature expiration time.
 */
public class SignatureExpirationTime 
    extends SignatureSubpacket
{
    /**
     * @deprecated Will be removed
     */
    protected static byte[] timeToBytes(
        long    t)
    {
        return Utils.timeToBytes(t);
    }

    public SignatureExpirationTime(
        boolean    critical,
        boolean    isLongLength,
        byte[]     data)
    {
        super(SignatureSubpacketTags.EXPIRE_TIME, critical, isLongLength, data);
    }

    public SignatureExpirationTime(
        boolean    critical,
        long       seconds)
    {
        super(SignatureSubpacketTags.EXPIRE_TIME, critical, false, Utils.timeToBytes(seconds));
    }

    /**
     * return time in seconds before signature expires after creation time.
     */
    public long getTime()
    {
        return Utils.timeFromBytes(data);
    }
}